Digital Electronics MCQs Set-3

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  1. 1. Which one of the following is the type of complement for each base R system?
    • Diminished radix-complement representation [(R – 1)’s complement]
    • Radix- complement representation [R’s complement]
    • 1’s and 2’s complement representation
    • Both A and B
  2. 2. For subtraction of binary number, subtract the _________________.
    • Minuend from the subtrahend digit
    • Subtrahend digit from the minuend
    • MSB from the LSB
    • None of the above
  3. 3. Which of the following condition is true for determining overflow condition in 2’s complement?
    • When adding two positive numbers gives a negative result or when two negatives give a positive result.
    • If sign bit (MSB) of result and sign bit of two operands are of different signs.
    • The ‘1’ in the MSB position indicates a negative number after adding two positive numbers.
    • All of the above
  4. 4. What does the leftmost bit represents, according to the IEEE standards?
    • Sign of the number
    • Position of the number
    • Weight of the number
    • None of the above
  5. 5. Floating-point numbers are those numbers, which include ______________
    • Decimals
    • Fractional parts
    • Integer values
    • All of the above
  6. 6. The binary representation of 0.875 is 0 01111110 11000000000000000000000 in _______________ presentation
    • 128- bit
    • Excess 127
    • 32- bit
    • 16-bit
  7. 7. 1000001 represents as (65)10 in which code?
    • ASCII code
    • Straight binary code
    • Gray code
    • BCD code
  8. 8. Binary Coded Decimal or BCD is also known as ______________
    • 2841
    • 4821
    • 4281
    • 8421
  9. 9. In straight binary code, N-bits or N binary digits can represent ______________ different values.
    • 2^N
    • 2^N+1
    • 2^N-1
    • 2^N-1
  10. 10. What is the decimal representation of decimal number 5?
    •  0000
    •  1001
    •  0011
    •  0101